Channel-cutter for sole-stitching machines.



W. F. JAYNES.

CHANNEL CUTTER FOR SOLE STITCHING MACHINES. APPLICATION FllED 0cT. 29 1917.

l ,301 269, Patented Apr. 22, 1 919.

LU; II

To all wh m it may concem -;Be it known that 1, WILLIAM citizen of the United States, residing at cHANnnL-ou'rmnron sotin srironme ivmcnnvns.

F. JAYNES, a

Evansville, in the. county of Vanderburg and-State of Indiana, have invented: certain new and useful Improvements in Channel Gutters for Sole-Stitching Machines; and I .do declarethe following to be a full, clear,

and exact description of the invention",rsuch as will enable others skilledin the art to which it appertains to make and use the same;

1': My inventionhas for its object to. provide 'feed dog and being so positioned as to out a channel to 'receive' the stitches formed-by the needle and the usual stitching mechamsm.

With the foregoing general object in view, the invention resides in the novel features of construction and unique combinations of parts to be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanyin drawings which form a part of this speci cation and in Which:

Figure 1 is a side elevation, partly in section, showing the application of my invention to a sole stitching machine;

Fig.2 is a horizontal section cut above the work support; and

Fig. 3 is a detail perspective view of the channel cutter and its operating yoke.

In the drawings above briefly described, the numeral 1 designates the work support of a common type of sole stitching machine, 2 designates the presser foot, 3 the needle, and 4 the usual proceeding and receding feed dog which advances the sole 5 when the needle 3 is raised. The presser foot 2 is preferably provided with a roller 6 traveling upon the work, and with an eye 7 through which the needle 3 extends. It will be understood, however, that the construction of the machine constitutes no part of my invention, but that the features above set forth are shown only for the sake of illustrating the improved device applied to the machine. This device is intended principally for use upon the Singer machine, No. 45, but it is to be understood that it may also Specification of Ietters rat-tit.

"Patented Apr. 22, 1919.

.A' pplication filed Gctober29,=1917. Seria1No.1 95,119-.

be employed on numerous other types of machines.

l :The work su'pportl is provided with a :groove 8 in its upper side, said groove openling through the edge of said support and ex- .tendingi-in a direction parallel with the line of movement of the feed dog 4. Within this groove, the upper horizontal arm 9 of a substantially'C-shapedyoke 10 is slidably poasitiond, whereas the other'arm llofsaid yoke, which I term the operating arm is positioned underthe support 1 and abuts the dogA so thatrthe receding strokes of this dog will move the-entire yoke 10 so as to move the fchann'el cutter 12 along the lower side of fthC-BLSOlB 5, said cutter' being in the ;form ofa shortupstanding blade'carriedby theifr'eeend ofthe arm -9. *The return movement of the dog 4 and the consequent action of the yoke 11=and-the cutter 12, take place Jwhile the needle 3 passes through the sole 5 and holds the latter against possible movement with these parts. It will thus be observed that the blade 12 will form a shallow channel 13 in the lower side of the sole to receive the stitching formed by the needle and the other well known stitching mechanism.

To constrain the yoke 10 to follow the dog 4 upon the proceeding or working strokes thereof, a spring 14 bears against the vertical portion 15 of said yoke, said spring being preferably secured to the ed e of the work support 1 by a screw or t e like 16.

From the foregoing, taken in connection with the accompanying drawings, it will be obvious that although my invention is of extremely simple and inexpensive nature, and may be quickly and. easily applied to sole stitching machines, the device will be said work support, the upper arm of said yoke having a channel cutter, and the. lower arm of said yoke being operatively associated with said' feed dog for moving said yoke to operate the cutter upon the receding strokes of said dog.

2. The combination of a sole stitching machine including a Work support and a proceeding and receding dog below said sup art for feeding the Work When the need e is raised, said support having in its upper side a groove extending throughits edge, a cutter-operating yoke having parallel arms straddling said edge, the upper arm sliding in said groove and having a channel cuttter, the lower arm of said yoke being operatively associated with said feed dog for moving said yoke to operate the cutter upon the receding strokes of said dog.

8. The combination of a sole stitching machine including a Work support and a proceeding and receding dog below said support for feeding the Work when the needle is raised, said support having in its upper side a groove extending through its edge, a cutter-operating yoke having parallel arms straddling said edge, the upper arm sliding in said groove and having a channel my hand in the cutter, the lowerarm oi said yoke. abutting saidfeed dog, whereby the receding strokes of said dog will shift the yoke to operate the cutter, and spring means 'for constraining said yoketo follow Said dog on its proceeding strokes.

l, As an article of manufacture, 4 Channel cutting attachment for sole stitching machines. comprising an arm adapted to slide horizontally in a groove in the top of the Work supportofthe machine, oneend ofsaid arm'having an upstanding channel cutter, a yoke. bar depending from andlintegral with the other end of saidarm, and an operating arm parallel to said first named armand integral with: one end of said yoke bar, said operating arm being adapted. to slide horizontally xhenea'th the aforesaid Work support and to abut and receive its movement from the feed. dog of the smachine. or v 1 In testimony whereof I have hereunto set presence of two subscribing witnesses. V f

WILLIAM FRANKLIN .JAYNE'S;

WVitnesses: 1 f

JoHN F. 1 GILMAN, T. BLARMISTEAD.

Copies of this patent may be obtained for five cents each, by addressing the ffio nmissioner of-latents,

wuhi l m D-.Q.-."' 

